Toy whistle



July 20 1926.

F. MADLE I TOY WHISTLE Filed A in 20, 1925 Patented duly 2t), 1925.

UNITED STATES time i mum; MADLE, or BERWYN, ILLINors',nssIe1von TO canvas MAN FACTURIIIG oom- PANY, or CHICAGO, ILLIvoIs, A CORPORATION on ILLINOIS.

To? wvmsrnn.

Application flied April 20, 1925 Serial No. 24,546.

1 tion is illustrated in the accompanying.

drawings, wherein:

Fig. 1 is a perspective view of arwhistle constructed in accordancewith the inven= tioni 3 Figii Fig. 3 1s a view similar to Fig the body of greater length." v

Figs. 4 and 5 are, respectively, sectional views on the line 4% and. 55 of Fig. 2;.

is a plan view of the same.

2 showing 1. which may be varied in length for varying the tones "produced thereby and varying the surface area adapted to be devoted to vertisingmatter. The body portionl is hole low and open at eachend. Formed integral "with the inner end ofthe body portion 1 is a semicylindrical extension 2 disposed lengthwisewithrespect to the latter and which i's'fold'ed upon itself, intermediate its ends, to provide a tongue 3 extending lengthwise witl'i respect to the body portion and further projecting a substantial distance within the latter. The tongue is spaced throughout from the top portion of the in ner faceofthe body portion 1, and is constructed'in amanner whereby the free end thereofwill converge slightly towards the said portion of saidinner face. p

The outer'portionof the projection 2, the tongue 3 and-the bend at between said outer portion and tongue are cut away to provide.

an opening '5 which extends lengthwise of the bend 4 and transversely of the tongue 3 and said outer portion. "Said opening 5 in side elevation is semi oval in contour. 1

The outer portion of the project-ion 2, in

connection with the tongue3 provides a lip piece for'directing a blastcof air through the opening 5 into the body portion 1. The blast' passes between. the tongue and that portion of the inner face of the body portion 1 towardswhichthe tongue converges.

In the top' of the bodv 1 adjacent said inn extension 2 there is a perforationfi of semis lar te the mean well hich s "more or less type.

Thedevice comprises a cylindrical body opposed to the space between the tongue 3 and the upper wall and inthe path of the blast of air projected through the perforation 5, the impingement of said blast agains t the thin edge afforded by said arcuate wall causlng the vibration resulting in the sound commonly designated as whistling.

Ifthe outer end of the body is entirely unobstructed when the blast of air is projected through the perforation 5, the whistle will be very shrill andbecome deeper toned as the outerend of the body is gradually.

gbstructed until no air may pass therefrom. .ihe device isthus rendered attractive as a musical toy of a very cheap I claim asjmy invention:

1. A toy whistle comprising a substantially cylindrical housing open at both ends and provided between itsends with an opening, a senn-cylindrical extension projecting from the top of said housing at its inner end and disposedlengthwise thereof, said extension bent upon itself intermediate its ends to provide a tongue disposed lengthwise of and extending a substantial distance within said housing, said tongue spaced from, and arextension formed with an opening, a wall of said first-named opening being positioned PATENT OFFICE.

to be in the path of a blast of air projected through the second named opening.

2. toy whistle comprising a substantial- 1y cylindrical housing open at both ends and provided between its ends with a sub- I a substantial distance within said housing, 531d tongue spaced from and arranged in close proximity to the top of the inner face of said housing, the bend in said extension "formed with lengthwise extending opening,-thc free end of said tongue converging towards the top of the inner face of the housing, the arcuate wall of said first-named opening being positioned to lie in the path of a blast of air projected through thesecond named opening,

FRANK MADLE, 

